MTBE Adsorption on Surfactant-Modified Natural Zeolites

  • سال انتشار: 1389
  • محل انتشار: دومین کنفرانس بین المللی زئولیت ایران
  • کد COI اختصاصی: ZEOLITE02_030
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 2187
دانلود فایل این مقاله

نویسندگان

seyed kamal ghadiri

School of Public Health and Center for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran

ramin nabizade

School of Public Health and Center for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran

hosein kazemian

Department of Chemical and Biochemical Engineering, Faculty of Engineering, University of Western Ontario-London, Ontario, Canada N۶A ۵B۹

alireza mesadghinia

School of Public Health and Center for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran

چکیده

This study evaluated the ability of natural clinoptilolite zeolite in form of Surfactant Modified Zeolites (SMZS) in removal of methyl tert-butyl ether (MTBE) from water using batch tests. Direct comparison between none modified zeolite (NMZ), Surfactant-Modified Zeolites (SMZ) and powder activated carbon (PAC) was made for MTBE removal from water. It was concluded that adsorption capacity of the zeolites will be remarkably improved toward MTBE molecules by modification of its surface by surfactants like Hexadecyltrimethylammonium-chloride (HDTMA-CL) & n-Cetylpyridiniumbromide (CPB). Especially the HDTMA had more effective performance. Therefore SMZ is a suitable candidate for removal of MTBE molecules from contaminated solutions. The results indicate that surfactant modification of the zeolite enhances its ability to absorb MTBE, particularly at pHs less than 7 and temperature of approximately 200 C. In the best condition (pH = 3, at 200C) the MTBE adsorption was 87.9% at optimized experimental conditions. Finally, the impact of differential influent MTBE concentrations and the presence of differential TDS concentrations on SMZS performance were demonstrated.

کلیدواژه ها

clinoptilolite; Surfactant Modified Zeolites; Methyl tert-butyl ether;adsorption

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.